A circular disc is of radius 7 cm. If the collection of circular discs

1.	A circular disc is of radius 7 cm. If the collection of circular discs of same radius are placed in a circular disc holder, then the length of the circular holder is ______.
Answer» ANSWER: Gɪᴠᴇɴ:- RADIUS 7cm Tᴏ ғɪɴᴅ :- The LENGTH of CIRCULAR holder Sᴏʟᴜᴛɪᴏɴ:- $\sf \: Radius \: of \: disc = 7 cm$ $\begin{gathered} \sf Perimeter \: of \: semicircular \: shape \: disc \: = πr+2r\end{gathered}$ $⠀⠀⠀⠀⠀⠀⠀⠀= \ \sf \frac{22}{7} \times 7 + 14=36cm$